/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.wsinfra.messaging.bootstrap;

import cgl.narada.wsinfra.exception.DeploymentException;
import cgl.narada.wsinfra.messaging.bootstrap.wse.WseInitializer;

/**
 * 
 * @author Shrideep Pallickara
 *
 */
public class InitializationFactory {

	private static final InitializationFactory instance =
		new InitializationFactory(); 
	private String moduleName = "InitializationFactory: ";
	
	private InitializationFactory() {
		
	}
	
	/** 
	 * The singleton instance of the Initialization Factory.
	 * @return The instance of the factory
	 */
	public static InitializationFactory getInstance() {
		return instance;
	}
	
	
	/**
	 * Create either a WSE or WSN based initializer based on the specified 
	 * argument.
	 * 
	 * @param isEventing Boolean variable indicating if the initialization should be 
	 * based on WSE or WSN.
	 * 
	 * @return The Initializer corresponding to the desired specification
	 * @throws DeploymentException If there are problems with the specified arguments
	 * or in the initialization of the Initializer.
	 */
	public Initializer newInitializer(boolean isEventing)
		throws DeploymentException {
		String error;
		if (!isEventing) {
			error = "Currently, there is support only for WS-Eventing." + 
				"Support for WS-Notification will be added later.";
			throwDeploymentException(error);
		}
		
		WseInitializer wseInitializer = new WseInitializer();
		return wseInitializer;
	}
	
	
	private void throwDeploymentException(String error) throws DeploymentException {
		String errorReport = moduleName + error;
		throw new DeploymentException(errorReport);
	}
}
